org.apache.lucene.search.suggest

Class BytesRefList

java.lang.Object

org.apache.lucene.search.suggest.BytesRefList

public final class BytesRefList
extends Object

A simple append only random-access BytesRef array that stores full copies of the appended bytes in a ByteBlockPool. Note: This class is not Thread-Safe!

WARNING: This API is experimental and might change in incompatible ways in the next release.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Constructor and Description
BytesRefList() Creates a new BytesRefList

Method Summary

Methods

Modifier and Type	Method and Description
int	append(BytesRef bytes) Appends a copy of the given BytesRef to this BytesRefList.
long	bytesUsed() Returns the number internally used bytes to hold the appended bytes in memory
void	clear() Clears this BytesRefList
BytesRef	get(BytesRef spare, int ord) Returns the n'th element of this BytesRefList
BytesRefIterator	iterator() sugar for iterator(Comparator) with a null comparator
BytesRefIterator	iterator(Comparator<BytesRef> comp) Returns a BytesRefIterator with point in time semantics.
int	size() Returns the current size of this BytesRefList

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BytesRefList

public BytesRefList()

Creates a new BytesRefList

Method Detail

clear

public void clear()

Clears this BytesRefList

append

public int append(BytesRef bytes)

Appends a copy of the given BytesRef to this BytesRefList.

Parameters:

bytes - the bytes to append

Returns:

the ordinal of the appended bytes

size

public int size()

Returns the current size of this BytesRefList

Returns:

the current size of this BytesRefList

get

public BytesRef get(BytesRef spare,
           int ord)

Returns the n'th element of this BytesRefList

Parameters:

spare - a spare BytesRef instance

ord - the elements ordinal to retrieve

Returns:

the n'th element of this BytesRefList

bytesUsed

public long bytesUsed()

Returns the number internally used bytes to hold the appended bytes in memory

Returns:

the number internally used bytes to hold the appended bytes in memory

iterator

public BytesRefIterator iterator()

sugar for iterator(Comparator) with a null comparator

iterator

public BytesRefIterator iterator(Comparator<BytesRef> comp)

Returns a BytesRefIterator with point in time semantics. The iterator provides access to all so far appended BytesRef instances.

If a non null Comparator is provided the iterator will iterate the byte values in the order specified by the comparator. Otherwise the order is the same as the values were appended.

This is a non-destructive operation.